All of these things are being discussed as potential solutions to a major marijuana industry challenge: a lack of banking services and an industry that is likely to be unusually cash-heavy.

“These stores can do $1 million (of business) a month,” said James Smith, an attorney and founding partner at Smith, Costello and Crawford who represents cannabis companies. “You don’t want that to be cash. … The state doesn’t want it, the industry doesn’t want it, even the federal government doesn’t want it.”